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General
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Target
driver_booster_setup_cyri.exe
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Size
24.7MB
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Sample
221107-a1q1qaccep
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MD5
291dd01e49c206cb9f1f7892d1b3776e
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SHA1
cf46cd488fccdad30d1e381dbf3f10992b6b3430
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SHA256
7d2d951a80874ac6d0194f5c972e76c2d92be57627198e2a7c011811868a91dd
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SHA512
b4ae258d903057cff0c2fdeb265f544fe3191d86e692fbbfcfca6bac747b2d46938adbba5bde28fddbb83a7869eab8c2579512a13352f8e4c582b5bfc0e985f7
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SSDEEP
393216:/4I5UMYEojxBzIUWUdQ5/lXUryjYCRcSUbUMAWNArssIKXxYdKDc46YE:/4+UDvDzLNW/5l8CRiYwArcKXxYYDIYE
Static task
static1
Behavioral task
behavioral1
Sample
driver_booster_setup_cyri.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
driver_booster_setup_cyri.exe
Resource
win10v2004-20220901-en
Malware Config
Targets
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Target
driver_booster_setup_cyri.exe
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Size
24.7MB
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MD5
291dd01e49c206cb9f1f7892d1b3776e
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SHA1
cf46cd488fccdad30d1e381dbf3f10992b6b3430
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SHA256
7d2d951a80874ac6d0194f5c972e76c2d92be57627198e2a7c011811868a91dd
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SHA512
b4ae258d903057cff0c2fdeb265f544fe3191d86e692fbbfcfca6bac747b2d46938adbba5bde28fddbb83a7869eab8c2579512a13352f8e4c582b5bfc0e985f7
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SSDEEP
393216:/4I5UMYEojxBzIUWUdQ5/lXUryjYCRcSUbUMAWNArssIKXxYdKDc46YE:/4+UDvDzLNW/5l8CRiYwArcKXxYYDIYE
Score9/10-
ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Executes dropped EXE
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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